Re: A Non-friction bicycle lights generator (dynamo)

iwicom@xxxxxxxxx writes:

> In this new generation bicycle light system, no battery is needed, no
> friction on any parts of the bicycle. The lights flash regardless speed
> of the bicycle and weather conditions (unlike normal dynamos!). Very
> bright.
>
> It can be used as a stand-alone light system (as a normal dynamo) on
> your bike, or used as a back-up for your existed battery-powered lights
>
> All details and buy on-line: http://www.freelights.co.uk

Well, you don't get something for nothing. No friction, but there will
be a very small tug each time the magnet passes the coil. Won't be
noticeable or even detectable without test instruments, or make any
difference to the feel of the bike, but it is non-zero. :)

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